Time to replace hardware for home use.

Happy Holidays

I've been using Sophos UTM (formerly Astaro) for almost 15yrs runnning on the same hardware a Dell PowerEdge with 2Gb of RAM and 60Gb drive.  No major issue what's so ever (maybe a few hiccups). Recently Comcast offer to upgrade my broadband from 100Mbs to 600Mbs for a few dolllars more per month. I'm only getting speed at around 100Mbs because of the HW limitation. I'm looking to replace this Dell PowerEdge with a Qotom (i.e. Intel i5 or i7 etc..) and was looking for recommendation ffrom fellow UTM here in the forums.  I know there tis he HCL listing, but it seems oudated.  I was wondering if anyone recently puchase HW for home use and can offer their recommendation.  

btw, this purchase will be future proof and hopfully will last as long as my Dell PowerEdge, which is currently still humming along

 - 4 streaming Android boxes

 - 10 IoT devices

Thanks in advance for any suggestions